<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Vue 数据</title>
    <script src="../vue.js"></script>
</head>
<body>
   <div id="app">

   </div>
   <script>
       var vm = newVue({
           el:'#app',
           data:{
               message:'helloworld'
           },
           filters:{
               toUpcase (value){
                   return value ? value.toUppCase():''
               }
           }
       })
   </script>
</body>
</html>